Wall construction



Aug. 7, 1928.

H. KUPELWIESER WALL CONSTRUCTION Filed June 30, 1925 zvenor:

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Patented Aug. 7, 192,8.

UNITED STATES 1,619,611 PATENT OFFICE.

HANs KUPnLwIEsER, oF sfr. roL'rE-N, AUSTRIA.

WALLA CONSTRUCTION.

. Application med June so, 1925, serial No.

sides with a lath grid. Owing to the em,

ployment of a double lath grid as a means of reinforcement, an intimate engagement between the wood and concrete and a mutual penetration of both is attained, which. renders possible a satisfactory utilization of the statical peculiarities of the two building materials (wood and concrete). The production of the vwood reinforcement in three .layers renders possible the fuse of wooden bars of a small cross-sectional area, whereby the detrimental effect of the working of the wood is considerably reduced. Finally the employment of the lath grids greatly facilitates the application of concrete with the aid of the known method of spraying concrete. Owing to the arrangement of the bars of the lath grids in such a manner, that they are displaced with respect to each other, all the clear openings of mesh of the trellis work are `covered,

up in the direction of the concrete jet, so that also in the case of larger openings of mesh the applied concrete strikes against a wooden surface. If desired iron reinforcement may be disposed andfembeddedvin the spaces between the bars'of the lath grids.

One mode of carrying out the present` invention is illustrated by way of -example on the accompanying sheet of drawings in which f Fig. l shows a trellis work in front view.

Fig. 2 illustrates a completed concrete wall in cross-section, and

Fig. 3 is a front view of the trellis work of a wall w ith the wood reinforcement extending in different directions. o

Fig. 4 illustrates a tower partly covered with concrete. v

In the illustrated embodiment the wooden framework consists of vertical wooden supports a, which are suitably spaced apart and provided atv both sides with laths b and o, displaced with respect to each otherl and nailed to the said supports.v The laths b and c are arranged with respect to the standards a either at ay right angle (Fig. l), or

f guide-post.

40,555, and in Austria September 2, 1924.

at any desired angle (Fig. 3). In crosssection the laths are dovetailed or of any other convenient shape (Fig. 2), in order to facilitate the adhesion of the applied concrete. The wooden framework, constructed inthe manner above described and forming a separate structure, acts in the manner rof ends or wooden bars owing'to the crossed disposition of the fibers of the wood in the three layers and in consequencel y of the nailing. sary to increase the rigidity by means of iron-reinforcements, the latter are disposed either in the spaces between'the supports a,

(iron rods e in Fig. l) or horizontal iron vrods L (Figs. l and 2) are arranged on the re-entcring surfaces of the laths b and c. r lhc wooden framework serves for supporting a double-sided concrete-layer m, further as an effective support of the concreteplaster, as a means for facilitating the attachment of any necessary iron insertions, and particularly as a means of reinforcement. Owing to thesuitable dimensioning of the rdistance between the laths all the clear openings of mesh can be covered up, so that in the event of employing the method of spraying concrete, the sprayed concrete cannot be blown right through the structure, whereby however t-he necesary `good engagementbetween the concrete and wood is satisfied by the peculiar shape of the wooden reinforcement.

Walls construct-ed accordinfr to the present vintention are particularly ac apted for the construction of thin-walled cylindrical towers (Fig. 4), such as for example silos, wateror oil tanks and so forth. The wooden framework is erected in such a manner, that the supports a are arranged in a circle upon a concrete base. For erecting the framework the supports are nailed to a. sill, secured to the said base by means of screws let into the concrete, and provisionally secured at two other' places to a ring-shaped gauge, which is clamped at convenient distances to a centrally arranged provisional Now the cornice or plate is placed over the upper ends of the supports and the latter' are secured thereto. After having put up the door and the vertical supports (which are iiXed in the final position by the sill, cornice or plate and the two gauges) the laths b and 0 are nailed to the wooden framework and can be bent in any convenient manner without breaking, owing In case it is found neces- A te their small thickness. ln this stage the Wooden `framework is ready for the application of the Concrete, after having removed the gauges and the guide-post.

l. ln a Wall construction oli concrete and Wood, a Wooden structure comprising a series et spaced vertical lath shaped. members, a series ol. lattice-Work members applied to the broad faces of the vertical memhers at an angle thereto7 a second series of lattice-Work members applied to the opposite faces of the vertical members in such manner that the interstices olthe opposing lattice-W rlis are substantially out of alignment With each other, and a concrete casing enclosing the entire Wooden structure.

2. ln a Wall construction of concrete and Y wood, a Wooden structure comprising a series parallel members of the opposing latticework, and a concrete casing upon the sides and within the interstices of the `wooden structure.

In a Wall construction of Wood and concrete, a Wooden structure comprising a serfes o closely spaced vertical lath shaped inenibers, a set of parallel members applied l te each. broad surface el the Vertical series at opposite pides thereof and at an angle thereto, and a concrete lcasing enclosing` the entire Wooden struct-ure.

4l. In a Wall construction o1 Wood and concrete, a series oi" spaced upright members, a set of parallel members applied to one side of the uprightmembers, a second set of parallel members applied to the opposite side of the upright meml'iers and in stagffered relation to thelirst set of parallel menllbers, anid a mass of concrete enrlfzsing the Wooden structure.

5. ln the construction defined inclaim 4, metal reinforcement hars distributedv between the members, and said parallel vmembers being dovetailed in cross section to key the wooden skeleton and concrete together. 

